Wednesday, April25, 2018 L-36.com


Marine Weather and Tides
Westbrook Center, CT

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.

Sunrise 5:53AMSunset 7:43PM Wednesday April 25, 2018 4:37 AM EDT (08:37 UTC) Moonrise 3:04PMMoonset 3:52AM Illumination 75% Phase: Waxing Gibbous; Moon at 10 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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ANZ330 Long Island Sound East Of New Haven Ct/port Jefferson Ny- 347 Am Edt Wed Apr 25 2018
.small craft advisory in effect through this afternoon...
Today..E winds 10 to 15 kt, increasing to 15 to 20 kt late this morning and early afternoon, then becoming se 10 to 15 kt late. Gusts up to 25 kt. Seas 1 to 2 ft. Rain. Isolated tstms late this morning and afternoon. Vsby 1 to 3 nm.
Tonight..SE winds 5 to 10 kt. Seas 1 ft or less. Showers likely, mainly in the evening. Vsby 1 to 3 nm.
Thu..SW winds 10 to 15 kt with gusts up to 20 kt. Seas 1 to 2 ft.
Thu night..W winds 10 to 15 kt with gusts up to 20 kt, diminishing to around 5 kt after midnight. Seas 1 to 2 ft in the evening, then 1 ft or less.
Fri..S winds 5 to 10 kt, becoming se 10 to 15 kt with gusts up to 20 kt in the afternoon. Seas 1 ft or less. Chance of rain in the morning, then rain likely in the afternoon.
Fri night..S winds 10 to 15 kt with gusts up to 20 kt, becoming sw 5 to 10 kt after midnight. Seas 1 ft or less. Chance of rain.
Sat..SW winds around 5 kt, increasing to around 10 kt in the afternoon. Seas 1 ft or less.
Sat night..SW winds 5 to 10 kt, becoming nw after midnight. Seas 1 ft or less.
Sun..NW winds 10 to 15 kt. Seas around 2 ft.
Sun night..NW winds 10 to 15 kt. Seas around 2 ft. Winds and seas higher in and near tstms.
ANZ300 347 Am Edt Wed Apr 25 2018
Synopsis for the long island waters and new york harbor.. Low pressure approaches from the south today and passes across the area tonight. The low moves into new england Thursday. Low pressure tracks through the area on Friday, followed by a cold frontal passage over the weekend. High pressure then builds in for the beginning of next week.

7 Day Forecast for Marine Location Near Westbrook Center, CT
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location: 41.27, -72.47     debug


Area Discussion for - New York City/Upton, NY
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Fxus61 kokx 250735
afdokx
area forecast discussion
national weather service new york ny
335 am edt Wed apr 25 2018

Synopsis
Low pressure approaches from the south today as passes across
the area tonight. The low moves into new england Thursday. Low
pressure tracks through the area on Friday, followed by a cold
frontal passage over the weekend. High pressure then builds in
for the beginning of next week.

Near term until 6 pm this evening
Overall model agreement is noted with regard to main upper level
and sfc features. Weak shortwave approaching from the south
just ahead of northern stream shortwave that tracks across the
great lakes region.

Sfc low approaches from the south, moving right up the eastern
seaboard. Gusty easterly winds this morning are anticipated,
then winds should diminish as the low approaches and the
pressure gradient weakens. Rain this morning could be heavy at
times per global models and high resolution simulated
reflectivity, with a focus just east of nyc. In general, qpf
amounts have trended down somewhat, but still expect around an
inch, with a range of 1 2 inch to up to 2 inches in spots. Once
again, cannot rule out some thunder, mainly mid morning into
the afternoon due to weak elevated instability.

Temps will struggle to rise much, with late day highs expected
once the steadier rain begins to taper somewhat. Blended met,
mav and ecs data.

Short term 6 pm this evening through 6 pm Thursday
Sfc low moves in the general area of nyc tonight as northern
stream possibly phases with weakening shortwave, although degree
of phasing remains in question.

Regardless, winds lighten, and fog will develop due to the
recent rain, light winds and minimal t TD spread.

A few showers are possible as the low and sfc trough passes.

Any fog lifts late tonight as westerly wind flow behind
departing low to the north stirs up the boundary layer, and
drier air moves in. Lows range from the upper 40s to lower 50s
per MOS blend.

On Thursday, sunshine returns, mixed with a few clouds and any
rain showers remain to the north, closer to upper shortwave, sfc
low. Westerly flow will allow for deeper mixing, and temps
rising well into the 60s.

Long term Thursday night through Tuesday
The ECMWF and GFS are in very good agreement with low pres tracking
thru the area fri. The sys is the remnants of the upr low currently
over neb. The modeling indicates a weak sys as the low runs out
ahead of an approaching upr trof. The thermals indicate all rain.

The timing is late Fri and Fri ngt attm, although some timing changes
cannot be ruled out. A more intense low would be possible if the upr
trof arrives quicker, or if the remnant low slows. A cold front then
brings a chc for some more shwrs on sat. Everything is progged to
clear out on Sun with some fair wx clouds likely as the cold pool
aloft passes thru. The post frontal high reaches pa Sun ngt. This
should be close enough to allow for the winds to decouple and
produce prime radiational cooling cond. As a result, the colder mex
was used for temps Sun ngt as opposed to the warmer model blends.

Frost freeze issues are possible if this unfolds as currently
expected. Fair wx with a warming trend for the beginning of next
week with an upr ridge building into the region.

Aviation 08z Wednesday through Sunday
Low pressure approaches from the southwest tonight into
Wednesday, and then moves overhead Wednesday night.

MVFR conditions continuing to lower to ifr overnight, with
moderate to heavy rain for the morning push. Isolated tstms
possible Wed morning into early afternoon but confidence remains
low, so have kept out of the tafs. Potential for lifr or lower
conds in stratus fog for evening push.

E winds increase to around 15 kt with gusts to 25 kt for coastal
terminals Wed morning. Winds subside in the early afternoon,
becoming light and variable for evening push.

Llws possible with SE winds at 40-45 kt at 2 kft.

Outlook for 06z Thursday through Sunday
Wednesday night Lifr or lower in stratus fog possible for
evening push, gradual improvement toVFR late Wed night into
early Thu morning.

Thursday Vfr.

Friday-Saturday Vfr. A chance of showers with areas of MVFR
conditions.

Sunday Vfr. W wind 10-15kt, g20-25kt.

Marine
Gusty easterly winds in the 20 to 25 kt range this morning will
diminish this afternoon as low pressure approaches from the
south. A few gusts to 30 kt are possible over the ocean waters
this morning.

Seas build in response to the increasing east winds. As the low
moves nearby, then to the north tonight, light winds will shift
to the west and pick up in speed once again. Westerly winds are
forecast Thursday as the low passes further to the north.

Sca conditions are expected through Thursday, mainly for
elevated ocean seas, but winds should gust as well.

For non ocean waters, SCA remains up for this morning, but will
extend eastern LI sound and peconic gardiners bays through 6 pm
as winds may linger across these locations a bit longer.

Low pres passing thru the region on Fri followed by a cold frontal
passage on Sat will keep seas at SCA lvls on the ocean. Elsewhere,
winds and waves look to remain blw criteria. Winds and seas blw sca
lvls all waters sun-tue with high pres building in from the w.

Hydrology
A widespread 0.50-1.50" of rain is likely today. Heavy rain at
times could cause minor urban and poor drainage flooding,
especially if the higher end of the expected rainfall range is
realized. Expecting the bulk of the rain to fall this morning,
perhaps lingering into late afternoon across SE ct.

No hydrologic impacts are anticipated fri-tue.

Equipment
Nyc NOAA weather radio station kwo-35 (162.55 mhz) remains off
the air.

Okx watches warnings advisories
Ct... None.

Ny... None.

Nj... None.

Marine... Small craft advisory until 2 pm edt this afternoon for anz335-
338-345.

Small craft advisory until 6 pm edt this evening for anz330-
340.

Small craft advisory until 6 pm edt Thursday for anz350-353-
355.

Synopsis... Jmc pw
near term... Pw
short term... Pw
long term... Jmc
aviation... Cb
marine... Jmc pw
hydrology... Jmc pw
equipment...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
44039 - Central Long Island Sound 13 mi38 min E 12 G 14 46°F 2 ft
NLNC3 - 8461490 - New London, CT 21 mi50 min SE 7 G 15 52°F 45°F1019.6 hPa
LDLC3 - New London Ledge CT - Ledge Light Weather 21 mi43 min E 9.9 G 12 48°F 45°F
NWHC3 - 8465705 - New Haven, CT 23 mi50 min ESE 6 G 11 52°F 50°F1019 hPa
MTKN6 - 8510560 - Montauk, NY 31 mi50 min 49°F 44°F1019.3 hPa
BRHC3 - 8467150 - Bridgeport, CT 38 mi56 min E 8.9 G 13 49°F 47°F1018.2 hPa
44017 - 23 Nautical Miles Southwest of Montauk Point, NY 46 mi48 min SE 16 G 18 48°F 45°F4 ft1018.8 hPa (-2.9)47°F

Wind History for New London, CT
(wind in knots)    EDIT      (on/off)   Help
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--
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N2
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N6
N7

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Chester, Chester Airport, CT8 mi43 minESE 65.00 miLight Rain52°F48°F88%1019.3 hPa
New Haven, Tweed-New Haven Airport, CT22 mi45 minE 810.00 miOvercast52°F46°F83%1018.7 hPa
Groton / New London, Groton / New London Airport, CT23 mi42 minESE 1110.00 miLight Rain50°F46°F89%1019.4 hPa

Wind History from SNC (wind in knots)
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Last 24hrCalmSW3SW4CalmS7
G12
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G13
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G16
S12SE12SE8SE4SE5SE4CalmCalmCalmE4E65
G10
E7E4
G11
1 day agoN4N4N3NE4NE6E6CalmS7S10S9S9S7S8
G14
S11S8S4S3CalmCalmS3CalmCalmS3Calm
2 days agoCalmNW3N3N5N6NW11
G17
NW10
G17
NW7
G16
5NW10
G17
NW7--NW12W5
G12
S9SW10W7--W6W5CalmCalmN4N4

Tide / Current Tables for Westbrook, Duck Island Roads, Connecticut
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Westbrook
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Wed -- 01:33 AM EDT     0.21 feet Low Tide
Wed -- 03:51 AM EDT     Moonset
Wed -- 05:55 AM EDT     Sunrise
Wed -- 07:49 AM EDT     4.30 feet High Tide
Wed -- 02:05 PM EDT     0.03 feet Low Tide
Wed -- 03:03 PM EDT     Moonrise
Wed -- 07:40 PM EDT     Sunset
Wed -- 08:22 PM EDT     4.44 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.90.30.30.81.62.63.54.14.33.93.22.21.20.400.31233.94.44.33.72.8

Tide / Current Tables for The Race, Long Island Sound, New York Current
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The Race
Click for Map
Wed -- 02:24 AM EDT     0.00 knots Slack
Wed -- 03:50 AM EDT     Moonset
Wed -- 05:17 AM EDT     2.69 knots Max Flood
Wed -- 05:53 AM EDT     Sunrise
Wed -- 08:33 AM EDT     -0.00 knots Slack
Wed -- 11:34 AM EDT     -3.19 knots Max Ebb
Wed -- 02:53 PM EDT     0.00 knots Slack
Wed -- 03:02 PM EDT     Moonrise
Wed -- 05:50 PM EDT     2.89 knots Max Flood
Wed -- 07:39 PM EDT     Sunset
Wed -- 09:07 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-2.7-1.8-0.60.92.12.72.51.90.8-0.7-2.2-3-3.1-2.5-1.30.21.72.72.92.51.60.2-1.4-2.7

Weather Map and Satellite Images
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wmap_A
GOES Local Image of    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Wind Forecast for New York City/Upton, NY (4,6,7,8)
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Ground Weather Radar Station Upton, NY
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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.